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The ACI RTD Immersion sensor is a single point temperature sensor that is designed for use with electronic controllers in commercial heating and cooling building management systems. They feature a ¼” diameter stainless steel probe and are manufactured using ACI’s proven double encapsulation process to eliminate the effects of moisture and to increase the response times using high quality, thermally conductive epoxy. The immersion sensors include a standard ½” NPS Male process thread.
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Applications: Chilled Water Systems, Hot Water Systems, Boilers, Pumps, Compressor, Chillers
Product specifications |
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Sensor Type: | Platinum RTD |
Sensor Curve: | PTC (Positive Temperature Coefficient) |
Number Sensing Points: | One |
Number Wires: | A/100-2W-I Series and A/1K-2W-I Series: Two (Non-Polarity Sensitive) A/100-3W-I Series and A/1K-3W-I Series: Three (Polarity Sensitive) |
Sensor Output @ 0ºC (32ºF): | A/100-xW-I Series: 100 Ohms nominal) A/1K-xW-I Series: 1000 Ohms nominal |
Sensor Accuracy: | +/- 0.06% Class A (Tolerance Formula: +/- ºC = (0.15ºC + (0.002 * |t|)) where |t| is the absolute value of Temperature above or below 0ºC in ºC)-40ºC (-40ºF): +/- 0.23ºC (+/- 0.414ºF)0ºC (32ºF): +/- 0.15ºC (+/- 0.27ºF)200ºC (392ºF): +/- 0.55ºC (+/- 1.00ºF) |
Din Standard | Temperature Coeffcient: | DIN EN 60751 (IEC 751) | 3850 ppm / ºC |
Stability: | +/- 0.03% after 1000 Hours @ 300ºC (572ºF) |
Response Time (63% Step Change): | 8 Seconds nominal |
Self-Heating | Maximum Operating Current: | 100 Ohm RTD: 7 mW/ºC (Still Air) | 5 mA 1K Ohm RTD: 4 mW/ºC (Still Air) | 3 mA |
Operating Temperature Range: | -40 to 200ºC (-40 to 392ºF) |
Enclosure Temperature Rating: | “-GD” Enclosure: -40 to 115ºC (-40 to 239ºF), Galvanized Steel, NEMA 1 (IP10) “-PB” Enclosure: -30 to 100ºC (-22 to 212ºF), ABS Plastic, UL94-5VB, Plenum Rated “-BB” Enclosure: -40 to 115ºC (-40 to 239ºF), Aluminum, NEMA 3R (IP14) “-4X” Enclosure: -40 to 70ºC (-40 to 158ºF), Polystyrene Plastic, NEMA 4X (IP66)) |
Storage Temperature Range: | -40 to 85ºC (-40 to 185ºF) |
Operating Humidity Range: | 10 to 95% RH, non-condensing |
Probe Diameter: | 0.250" (6.35mm) |
Thermowell Material | Bore Diameter: | 304 Series Stainless Steel | 0.260" |
Probe Diameter: | 0.250" (6.35mm) |
Probe Material: | 304 Stainless Steel |
Thermowell Instrument Thread | Process Thread: | 1/2" NPS (National Pipe Straight) Female Thread | ½” NPT (National Pipe Tapered) Male Thread |
Fitting Material | Flammability Rating: | Polyamide 66 (High Performance Nylon 66) | UL94-HB |
Foam Pad Material | Flammability Rating: | Neoprene/EPDM/SBR Polymer | UL94-HBF; FMVSS-302; MIL-R-6130C |
Sensor Threads: | 1/2"+ NPS (National Pipe Straight) Male Thread |
Lead Length | Conductor Size: | 14” (35.6 cm) | 22 AWG (0.65mm) |
Lead Wire Insulation | Wire Rating: | Etched Teflon (PTFE) Colored Leads | Mil Spec 16878/4 Type E) |
Conductor Material: | Silver Plated Copper |